A lack of melanin causes a lighter eye, resulting in blue pigmentation. ©iStock.com/format35 Animals with blue eyes are a rare occurrence in nature due to being ...

Just as blue-eyed humans are relatively rare, blue-eyed dogs are very uncommon among the general population—in fact, they're even rarer. While some 8-10% of people in the world have blue eyes, only ...

Animals with blue eyes are a rare occurrence in nature due to being linked to recessive genetics, mutations, and specific genes. Despite that, many species still have beautifully rich blue eyes. While ...